jblewis

I found #66 under the event cache log this afternoon. This event was my introduction to GeoCoins. Thanks to N0RUG for inviting me along. Thanks!

I use the Garmin suction cup mount for my Vista, and it holds on through a lot of pounding! Summer, winter it doesn't seem to matter. Though I have noticed that when you put it on in the winter, it is best to run the defroster for a bit to warm the glass up some first. I also use the power/data combo cable from Pfranc.com JB

OK, I couldn't help but throw my two cents into this ring... Here's my setup: 98 Subaru 2.5 RS TerraTrip 303Plus Rally Odometer Etrex Vista The rally computer takes the VSS (Vehicle Speed Signal) from the transmission. (The same source as the factory Speedometer) The Teratrip uses a factor I supply/calculate to to calc the distance the vehicle has traveled. A factor of 4100 for example means that that 4100 pulses the TT gets, it racks up one mile. Subuaru quotes that there should be 4104 pulses per mile. (one pulse for every 1.2865 feet traveled.) After some experimentation and frustration, I determined that the odometer on my car is very accurate, however, the Speedo is a consistent 5mph slow. That is when I set the cruise control for "60" the GPS and the rally computer agree that I am in fact covering 65 miles per hour. * The factor was determined after multiple runs along a 37 mile baseline of nearly straight road in Northern Minnesota in varying weather conditions. According to the GPS receiver's odometer, the mile markers at each end of the baseline are accurate to within .02 miles of each other. JB

OK, this is starting to get off topic a little bit.. but... I have to admit, I haven't tried updating the software on my etrex yet, but I have on a GPSIII. And on that unit, the software upgrade was a program that did everything for you: established communications via the serial port and used whatever proprietary protocol to deliver the update and reboot the receiver. Let's see... Yes, according to the readme, you just need to hook up the receiver to an available serial port, and run the program. JB